Removing duplicate node

Author: mamccrea

articles/azure-databricks/TOC.yml

@@ -1618,20 +1618,6 @@
         - name: Azure Databricks personal access tokens
           href: /azure/databricks/dev-tools/api/latest/authentication
           maintainContext: true
-        - name: Azure Active Directory tokens
-          items:
-          - name: Azure AD token authentication overview
-            href: /azure/databricks/dev-tools/api/latest/aad/index
-            maintainContext: true
-          - name: Get an Azure AD token using the Azure AD Authentication Library
-            href: /azure/databricks/dev-tools/api/latest/aad/app-aad-token
-            maintainContext: true
-          - name: Get an Azure AD token using a service principal
-            href: /azure/databricks/dev-tools/api/latest/aad/service-prin-aad-token
-            maintainContext: true
-          - name: Troubleshoot Azure AD access tokens
-            href: /azure/databricks/dev-tools/api/latest/aad/troubleshoot-aad-token
-          maintainContext: true
         - name: Azure Active Directory tokens
           items:
           - name: Azure AD token authentication overview